RFC 9861: KangarooTwelve and TurboSHAKE
In plain English — editorial summary, not part of the RFC
This document defines four eXtendable-Output Functions (XOFs), hash functions with output of arbitrary length, named TurboSHAKE128, TurboSHAKE256, KT128, and KT256. All four functions provide efficient and secure hashing primitives, and the last two are able to exploit the parallelism of the implementation in a scalable way. This document is a product of the Crypto Forum Research Group. It builds up on the definitions of the permutations and of the sponge construction in NIST FIPS 202 and is meant to serve as a stable reference and an implementation guide.
Document record
- Document ID
- RFC9861
- Published
- October 2025
- Authors
- B. Viguier; D. Wong; G. Van Assche; Q. Dang; J. Daemen
- Status
- INFORMATIONAL
- Stream
- IRTF
- Area
- —
- Pages
- 28
- Also known as
- —
Topics
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
Also filed under
About this page
The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.
Data sources · Editorial policy · Report a correction · What is an RFC?